Frequently Asked Questions
Yes. You can download Circadify and start scanning your vital signs without paying anything. No credit card, no trial period that expires, no hidden fees. The core scanning experience is free.
Your phone camera detects tiny, invisible color changes in your face caused by blood pumping through the vessels beneath your skin. This is called remote photoplethysmography (rPPG). Circadify's algorithms analyze these subtle shifts to calculate your heart rate, stress level, and other vital signs — all without touching you.
A single 30-second scan can read your heart rate (BPM), heart rate variability (HRV), breathing rate, stress index, and blood oxygen saturation (SpO2). All from your front-facing camera.
No. You can scan your vitals immediately after downloading — no sign-up, no email, no profile setup. Just open the app and tap scan.
Completely. All processing happens on your phone. Your camera feed is analyzed locally and never uploaded to any server. No biometric data is stored in the cloud, and nothing is shared with third parties.
If your phone has a front-facing camera — and almost every smartphone made in the last decade does — Circadify will work. It's available on both iOS and Android.
About 30 seconds from start to finish. Hold your phone up, stay still, and your results appear on screen. It's faster than checking your pulse the old-fashioned way.
No. Circadify is a wellness and lifestyle app designed to help you stay aware of your body's signals. It is not a medical device and is not intended to diagnose, treat, or prevent any medical condition. If you have health concerns, please consult a healthcare professional.
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